＜Green Science Alliance Inc, Nail Cosmetics with Quantum Dots

GS Alliance, Inc. (Location: Kawanishi City, Hyogo Prefecture; President: Ryohei Mori) has developed the world's first nail polish, nail polish, nail polish and nail tips with quantum dots by combining the quantum dots developed by GS Alliance with nail cosmetic products.

(Left) Normal nail tip under black light irradiation (Right) Nail tip coated with nail polish containing quantum dots

GS Alliance Inc. is a company that researches and develops cutting-edge technologies specialized in the environmental and energy fields to build a decarbonized, carbon-neutral society. The company has developed a variety of products, including advanced materials called quantum dots, which were awarded the Nobel Prize in Chemistry in 2023, and has synthesized and commercialized a variety of quantum dots and quantum dot composite materials.

Dr. Ryohei Mori, an engineering professor at the company, has synthesized quantum dots using a naturally occurring material that is safe for the human body and can be used in cosmetics, and has developed nail polish and nail polish using these quantum dots. This is believed to be the first product in the world to use such quantum dots in nail cosmetics (according to the company's research). Under ultraviolet light irradiation, black light, and blue light, they emit various colors.

In the future, the company plans to strengthen sales and marketing of nail cosmetics using these quantum dots, and to further develop nail cosmetics using quantum dots that emit various colors.

What are Quantum Dots?

Quantum dots are cutting-edge materials with nanoscale ultrafine structures that have optical properties that obey the laws of quantum chemistry and quantum mechanics, and were the subject of the 2023 Nobel Prize in Chemistry. Quantum dots are extremely small structures, typically 0.5-9 nm in diameter, with tens to thousands of atoms and molecules per dot, and are also called artificial atoms or molecules. When the material of quantum dots is a semiconductor, it is possible to adjust the band gap depending on the size of the nanocrystal, and thus they have characteristic luminescence properties that depend on the particle size. Therefore, the emission wavelength can be tuned by changing the particle size, and compared to solid-state phosphors, quantum dots have a narrower spectral half-width and higher quantum efficiency, and can also absorb a wide range of wavelengths.

■Various Expected Applications

Quantum dots are expected to be used in the following applications because of their bright and vivid colors, wide range of wavelengths, high efficiency, long life, and high attenuation coefficient.

1. solar cells

2. display

3. bio-imaging, biomarker, medical imaging devices (cancer cell imaging, protein analysis, cell tracking, etc.)

4. quantum computers

5. security tags, security inks, anti-counterfeiting

6. quantum dot laser

7. transistors

Photonic crystals

9. LEDs 10. high-density solid-state memory

10. high-density solid-state memory

11. thermoelectric materials

12. artificial photosynthesis

13. nail cosmetics

Company Profile

Company name: GS Alliance Corporation (Fuji Pigment Co., Ltd. Group)

Representative: Dr. Ryohei Mori, President (Engineering)

Head office: 2-22-11 Kohana, Kawanishi City, Hyogo Prefecture, 666-0015, Japan

Business description: Carbon neutral, decarbonization, environment to tackle SDGs issues,

　　　　　　 Research and development of cutting-edge technologies in the environmental and energy fields that address carbon neutrality, decarbonization, and SDGs issues.

　　　　　　 (United Nations Startup Enterprise Support Program

　　　　　　　UNOPS GIC KOBE in 2020)

URL : https://www.gsalliance.co.jp/